Granted Patent
Utility
US 6,419,704 · App. 09/415,382
Artificial intervertebral disc replacement methods and apparatus
Inventor:
Bret A. Ferree
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Oct 8, 1999
Inventor
Bret A. Ferree
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.